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                <a name="asio.reference.default_completion_token"></a><a class="link"
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                                                                         title="default_completion_token">default_completion_token</a>
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    <p>
        <a class="indexterm" name="asio.indexterm.default_completion_token"></a>
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    <p>
        Traits type used to determine the default completion token type associated
        with a type (such as an executor).
    </p>
    <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span>
    <span class="keyword">typename</span> <span class="identifier">T</span><span class="special">&gt;</span>
<span class="keyword">struct</span> <span class="identifier">default_completion_token</span>
</pre>
    <h5>
        <a name="asio.reference.default_completion_token.h0"></a>
        <span><a name="asio.reference.default_completion_token.types"></a></span><a class="link"
                                                                                    href="default_completion_token.html#asio.reference.default_completion_token.types">Types</a>
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                        Name
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                        Description
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                        <a class="link" href="default_completion_token/type.html"
                           title="default_completion_token::type"><span class="bold"><strong>type</strong></span></a>
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                <td>
                    <p>
                        If T has a nested type default_completion_token_type, T::default_completion_token_type.
                        Otherwise the typedef type is not defined.
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    <p>
        A program may specialise this traits type if the <code class="computeroutput"><span class="identifier">T</span></code>
        template parameter in the specialisation is a user-defined type.
    </p>
    <p>
        Specialisations of this trait may provide a nested typedef <code class="computeroutput"><span
            class="identifier">type</span></code>, which is a default-constructible
        completion token type.
    </p>
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        <a name="asio.reference.default_completion_token.h1"></a>
        <span><a name="asio.reference.default_completion_token.requirements"></a></span><a class="link"
                                                                                           href="default_completion_token.html#asio.reference.default_completion_token.requirements">Requirements</a>
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    <p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">asio/async_result.hpp</code>
    </p>
    <p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
    </p>
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            <div class="copyright-footer">Copyright © 2003-2022 Christopher M. Kohlhoff<p>
                Distributed under the Boost Software License, Version 1.0. (See accompanying
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